Air-hose coupling.



E. L. BROWN.

AIR HOSE COUPLING.

APPLICATION FILED 1113.15, 1909..

939,21 1. Patented Nov. 9, 1909.

ST Ares PATENT OFFICE.

EDWARD L. BROWN, or CLEVELAND, onmnssreivon orbits-THIRD 'r'o P. L. ANDREWS, or, TOLEDO, 01110, AND ONE-THIRD TO arms. EISELE, or CLEVELAND, -on1o.

AIR-HOSE COUPLING.

Applicationfiled latch 15, 1909.- Serial No. 483,412.

To all whom it may oncem:

Be it known that I, EDWARD L. BROWN, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Air-Hose Coup;

, lings, of which the following is a specification.

My invention relates to improvements in air-hose couplings for use in connection with air-hose, the present embodiment of the invention being particularly designed for use in connection with air-hose used in connection with vpneumatically operated tools and machinery andis adapted to automatically shut oil any further flow of air whenbroken at a coupling or detached. It-also enables one or more lengths of hose to be detached successively without closing the air valve in the line-pipe.

The primar'yobject of the invention is to provide a generally improved coupling of this'class which Wlll be. exceedingly simple Y forming a part 1, is' a side ele-.

vation of a detached coupling in its as;

sembled or connected position. Fig. 2, a longitudinal sectional view of the same. Fig. 3, across sectional view taken through line 33, of Fig. 2. Fig. 4, a cross sectional view taken through line 4 3:, of Fig. 2.

Fig. 5, an end view of the improved coupling. Similar numerals of reference designate like parts throughout all the figures of the drawlngs.

The improved coupling comprises two coupler members each provrded with an externally screw threaded shank portion 1, "adapted to be screwed with n the bore of the hose, and to besecu'rely fastened or clamped therein in any suitable and convenient manner, each of said shank portions terminating in flanged heads '2, one or said flanged heads being provided with an. internally threaded in construction, cheap of manufacture, efiiopening 3, forming in the a threaded flanged head 2.

A valve coupling section, or block 4, is removably connected to one of the coupler members and, in the present instance, is

Patented Nov. 9,1909.

present instance,

secured thereto by being provided at one end with. an externally screw threaded portion 4, screwed into theintern allythreaded opening 3, of the flanged head 2. valve coupling section or body 4, is provided with a valve chamber or opening 5, pro-y vided with an annular flange-seat 6, and

The 4 terminating in a coupler receiving opening A spring-resisted valve head; 8, is slidably mounted in the valve chamber oropening 5, and is provided,."in the present in-- stance ,with a plurality of peripheral air inlet openings or ports 9, communicating at all-times with the valve chamber 5.- i The valve head-is adapted to be moved to and -held in seated position iipon the annular valve seat 6, by the action of the spring 10,

in the rear portion of the valve chamber, and said valve head is provided, in the present instance", with a conically shaped 'head 8', terminating located pocket-recess 11.

The coupler receiving opening is internallythreaded; in the present instance, by means of spirally, arranged threads" or grooves 12, and'is preferably provided with in a cone shaped centrally a packing-ring or gasket 13. The receiving {opening 7 is adapted to receive and contain a valve-head-engaging hollow valve-stem 14, of the male coupling member, said valvestem being secured, in the present instance,;

by means of a spirally arranged flange or rib 15, adapted to traversethe corresponding groove 12-, inthe receivingopening 7 The valve-stem 14, is provided, in the present instance,- with a plurality of air inlet openings or ports 16, andis provided at its forward end with a cone shaped projection .17, adapted to take into and be seated within the pocket-recess l1, oi the valve head 8,

whereby the latter will be; unseatedwhen the valve-stem carrying member or coupler has ice been drawn up and whereby communication is established between the air inlet ports 9,

of the valve-head and the inletopenings or .ports 16, of the valve stem 14, as shown most clearly in Fig. 2, of the'drawingsl As a means for locking thevalve-vstem carrying coupler member and preventing the imscrewing of the latter .when drawn. up, a

, Havi g thus described 1'20 which may be made,

135 tubular member, a tubular ex '45 tubular members together after they have Q 5 opening being e latching bolt .18, is slidably mount'edin a guide opening 19, of the valve couplihg section or body 4', and is normally pro ected I i into a-bolt receiving recess 20, (see Figs. 2

and 5) of theadjacent flanged head .2, by

-1: 5- connection.with the. accompanying drawings, the operation and advantages'of my'invention will be readily understood.

my invention, withpting to set forth all the formsin or all the modes ofits use, what I claim anddesire to secure by 7 Letters Patent is,'-. Y

' 1. 111 a coupling for tubular conduits, .the "combination with a tubular member having out -'att '25; a" longitudinal opening therethrough, said mp'enin-g being enlarged inldiameter toward one of its ends so asto form an annular shoulder, that portion ofthe opening having the smaller diameter being-provided with Ta; 39 circumferential groove, of a v'alveinthe en'- larged part of said opening, said valve being adapted to seat itself on said shoulder,

a second tubular member, means for attaching the second tubular member'to the first tensigi on the said second member, said be ing adapted to' enter the smaller part of the said opening and tohold 'the'said valve awayfrom the shoulder, when the members 4Q are attached togetheg'a-packing ring within the'said circumferential groove, said ring being adapted to contact 'w'ith the said tubular extension and to establish therewith a fluid proof ,joint, and means forlocking the two beenattached.

' f 2. In a coupling fortubu1ar conduits, the. combination with a tubular member having. ajlongitn'dinal .o ening therethrough, said arged in diameter toward" one-of its ends so as 'to iorm an annular" shoulder, thattpertion of the opening having. the smaller diameter being providedwitha -s circumferential-groove adjacent said shoulov j en the outer endof said opening; favalve in the enlarged part of said opening, said valve being adapted to seat itself on said shoulder, aisecond tubular member havin a spiral rib ted to-fit as a screw thread mto the. said i fi el id secpnd member,

tubular, extension on the diameter of the said opening, said extension bemg adapted to-push the valve away member. is screwed into the first member {and a packing ring within thesaid circumferential groove,'said contact with the said tubular extension and to establish therewith a'fluid-proof joint.

- 3. In a coupling for tubular conduits, the combination with 'a tubular member having a longitudinal opening therethrough, said opening being enlarged in diameter toward one ofits ends so as to form an annular shoulder, that portion of the opening having the smaller diameter bei g provided with a circmnferential groove adjacent said shouldervand with a spiral groove adjacent the outer end of said opening, of a'valve in the enlarged part ofsaid pening, said valve a second tubular member having a spiral rib adapted to fit as a screw thread into the said spiral v groove, a tubular -extension on the said second member, said extensiongbeing adaptedto pushthe valve. away from the said shoulder when screwed into the first member, a packing ring withinthe said circumferential groove, said tubular extension and to" establish therewith a fluid-proof joint, and means for locking the said secondmember in the" valve has been moved 0 vided at one end with a valve-chamber and q ceiving opening; of an opposing coupling ;secti'on lraving aflanged headterminating in an open valve-stem adapted to'unseat said valve when the coupling sections are drawn. together, said valve-stem being provided with a peripheral spiral else said spiral groove and having 1ts open "endrada tedto'take into said gasket and forn 1'auid-tight joint upon the mitialen- -gagement of said spiral rib with sald spiral groove and prior to the unseating of said vvalve by said valve-stem. g In testimony whereof I signature, in presence of two witnesses. f f QEDWABJ) L BROWN.

:Witnesses;

saidextension having a ring being adapted to.

ositlon after of the said diameter substantially'equal to the smaller from the said shoulder when the second being adapted to seat itselfon said shoulder,

the second member is 1 ring being adapted to contact with the said shoulder. v Us,

4., In a cou ling for tubular condu1ts,'the combination 1th acoupling section'pro rib adapted to travv 

